There is probably a better way but I used to use a Whirlwind Direct
Box, sending a mic level to the board. The Whirlwind has switch to
drop the ground. Seemed to do the job.

Last suggestion:

Turn up the drums.......... :)

On Jan 10, 2010, at 2:41 PM, eightiescrisis wrote:

> Recently upgraded my mixer, and now I notice my Matrix 6R is fairly
> noisy. It seems to have a low level noise and synth rumble on all
> the patches. What's unique is that the sound changes from patch to
> patch, but is always there. You can here it when the synth is not
> being played, and I've even removed the midi cable, and turned
> everything else off, just the module and the mixer........
>
> I guess I could turn the main volume down on the unit, but is there
> something else I could do
>
>
> Should I replace the caps, and where are they and what do they look
> like
>
> Is this common
>
>
>
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